clown eggs?

Yesterday some white stringy and bumpy stuff appeared on two different rocks
on opposite sides of my tank. I was wondering what was growing all of the
sudden, but the only thing that makes sense are eggs. Today I just noticed
more of this stuff on the back glass in two close spots. When I had a
freshwater tank I had a pair of angels that laid eggs every so often, but
was unable to get them to live. The stuff in my salt tank is different in
that it is kind of stringy in some places, but the bumps look like they can
be eggs.
Has anyone had experience with this? Is there any hope of offspring? I've
heard it extremely difficult to breed sal****er fish.
TIA
Colleen